1543476461 has 6 divisors (see below), whose sum is σ = 1639610250. Its totient is φ = 1452683456.

The previous prime is 1543476439. The next prime is 1543476469. The reversal of 1543476461 is 1646743451.

It can be written as a sum of positive squares in 3 ways, for example, as 980316100 + 563160361 = 31310^2 + 23731^2 .

It is not a de Polignac number, because 1543476461 - 2⁶ = 1543476397 is a prime.

It is a super-2 number, since 2×1543476461² = 4764639171322169042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1543476469) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2670086 + ... + 2670663.

It is an arithmetic number, because the mean of its divisors is an integer number (273268375).

Almost surely, 2^1543476461 is an apocalyptic number.

It is an amenable number.

1543476461 is a deficient number, since it is larger than the sum of its proper divisors (96133789).

1543476461 is an equidigital number, since it uses as much as digits as its factorization.

1543476461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5340783 (or 5340766 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The square root of 1543476461 is about 39287.1029855855. The cubic root of 1543476461 is about 1155.6686622484.

The spelling of 1543476461 in words is "one billion, five hundred forty-three million, four hundred seventy-six thousand, four hundred sixty-one".